S6 Quattro Sedan V10-5.2L (BXA) (2007)
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Connect (V.A.G 1598/42) to wiring harness with (V.A.G 1598/39-1) or (V.A.G 1598/39-2). Clamp test box ground (GND) clip to battery negative
terminal. The procedure will indicate whether the engine control module is to be connected to the test box or not.
CAUTION!
Risk of destroying electrical components.
‹› Before connecting the test leads, switch on the respective measuring range and observe the test conditions.
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Check the following wire connection for open circuit and short circuit to Ground (GND) and B+:
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Repair wiring open circuit or short circuit according to wiring diagram.
If no malfunction is found, but leak diagnosis pump is not functional during output diagnostic test mode:
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Replace the leak detection pump (LDP). Refer to => [ Leak Detection Pump ] See: Service and Repair.
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Observe procedures for after re-connecting engine control module (ECM).
Checking input wiring
